Just as you can have professional call-girls, who may be breaking the law, they are still professional because they take money for their services.
According to dictionary.com, all of the following are definitions of "professional":
pro∑fes∑sion∑al ( P ) Pronunciation Key (pr-fsh-nl)
1. a. Of, relating to, engaged in, or suitable for a profession: lawyers, doctors, and other professional people.
b. Conforming to the standards of a profession: professional behavior.
2. Engaging in a given activity as a source of livelihood or as a career: a professional writer.
3. Performed by persons receiving pay: professional football.
4. Having or showing great skill; expert: a professional repair job.
1. A person following a profession, especially a learned profession.
2. One who earns a living in a given or implied occupation: hired a professional to decorate the house.
3. A skilled practitioner; an expert.
It seems that the P in SEMPO could stand for a number of those definitions, although not the adj. 1.b.
To fall in line with a definition, does a word have to meet all aspects of it's definition? I don't think so. Generally if it meets one of the criteria for the definition, it fits.
Looks to me like SEMPO can feel free to keep their "P" if they like, whether or not they put up the disclaimer Bob outlined.
That said, I think they should put up that disclaimer. And I'm also glad that Barry has joined! I'm sure he will have much to contribute. SEMPO is looking better and better all the time.
See, Chris, you might not even need to gag me at their next meeting!